html,body{
    width: 100%;
    height: 100%;
    margin:0;
    padding:0;
    overflow: hidden;
}
p{
    margin: 0;
    padding:0;
}
a{
    text-decoration: none;
    color:#3A9BF7;
}
.content{
    width: 16rem;
    height: 28.4rem;
    background: url('../images/jfbg.png') no-repeat left top / 100%;
    position: relative;
}

.alert{
    width:100%;
    height: 100%;
    background: rgba(0,0,0,.3);
    position: relative;

}
.alert .info{
    position: absolute;
    top:30%;
    left:15%;
    width:60%;
    background: white;
    text-align: center;
    border-radius: .7rem;
    padding: 0 5% 5%;
    font-size: .7rem;
}
.alert .info strong{
    line-height: 2rem;
}
.alert .info p{
    line-height: 1.35rem;
    font-family: 'Microsoft YaHei'
}
.alert .info button{
    border: none;
    background:none;
    margin-top: 1rem;
    font-weight: 600;
    font-size:.8rem;

}